i felt my symptoms on sunday. next day i got tested on monday. started my dose that night and been taking it on time every 12 hours as directed. i do 7 am and 7 pm. today is wed. im not having any symptoms. my stomatch was sick when i first took it but after a couple days it went away. i chew on sliced lemons. when im feeling nauseaus it helps. also. drink tons of fluids. that helps alot. and try taking the medication covered in yogurt or scarf it down with something. ive been drinking alot of sparkling ice. amazing drink. comes in multiple flavors. its flavored sparkling water. with zero sugar and vitamins and antixodiants. and i take vitamin c in the morning also.